Question 1

The largest and most numerous of the glial cells in the central nervous system are the

Accepted Answer

A) astrocytes. 
B) Schwann cells. 
C) oligodendrocytes. 
D) microglia. 
E) ependymal cells. 
A) astrocytes. 
B) Schwann cells. 
C) oligodendrocytes. 
D) microglia. 
E) ependymal cells.

Question 2

Changes in the membrane potential that cannot spread far from the site of stimulation are called

Accepted Answer

A) threshold. 
B) graded potentials. 
C) refractories. 
D) hyperpolarizations. 
E) action potentials. 
A) threshold. 
B) graded potentials. 
C) refractories. 
D) hyperpolarizations. 
E) action potentials.

Question 3

Which pathway begins at the pyramidal cells of the cerebral cortex?

Accepted Answer

A) posterior column 
B) medial 
C) spinocerebellar 
D) lateral 
E) corticospinal 
A) posterior column 
B) medial 
C) spinocerebellar 
D) lateral 
E) corticospinal

Question 4

Which cranial nerve is responsible for the motor innervation of pharyngeal muscles and parotid salivary glands?

Accepted Answer

A) XII 
B) X 
C) VIII 
D) IX 
E) VI 
A) XII 
B) X 
C) VIII 
D) IX 
E) VI

Question 5

The sensory region of the body monitored by each pair of spinal nerves is known as a

Accepted Answer

A) somite. 
B) microtome. 
C) dermatome. 
D) sensory unit. 
E) motor unit. 
A) somite. 
B) microtome. 
C) dermatome. 
D) sensory unit. 
E) motor unit.

Question 6

In adults,the spinal cord usually extends to which level?

Accepted Answer

A) tenth thoracic vertebra 
B) first sacral vertebra 
C) seventh cervical vertebra 
D) fourth or fifth lumbar vertebra 
E) first or second lumbar vertebra 
A) tenth thoracic vertebra 
B) first sacral vertebra 
C) seventh cervical vertebra 
D) fourth or fifth lumbar vertebra 
E) first or second lumbar vertebra

Question 7

The myelin sheaths that surround the axons of some of the neurons in the CNS are formed by

Accepted Answer

A) astrocytes. 
B) Schwann cells. 
C) oligodendrocytes. 
D) microglia. 
E) ependymal cells. 
A) astrocytes. 
B) Schwann cells. 
C) oligodendrocytes. 
D) microglia. 
E) ependymal cells.

Question 8

An autonomic motor neuron whose cell body lies in the CNS is called a(n)

Accepted Answer

A) upper motor neuron. 
B) lower motor neuron. 
C) preganglionic neuron. 
D) postganglionic neuron. 
E) somatic motor neuron. 
A) upper motor neuron. 
B) lower motor neuron. 
C) preganglionic neuron. 
D) postganglionic neuron. 
E) somatic motor neuron.

Question 9

Voluntary control of skeletal muscles is provided by the

Accepted Answer

A) posterior column. 
B) medial pathway. 
C) spinothalamic pathway. 
D) corticospinal pathway. 
E) medullary centers. 
A) posterior column. 
B) medial pathway. 
C) spinothalamic pathway. 
D) corticospinal pathway. 
E) medullary centers.

Question 10

Which structure contains cardiovascular and respiratory rhythmicity centers?

Accepted Answer

A) inferior colliculus 
B) superior colliculus 
C) pons 
D) cerebellum 
E) medulla oblongata 
A) inferior colliculus 
B) superior colliculus 
C) pons 
D) cerebellum 
E) medulla oblongata

Question 11

Identify the correct sequence of steps in the generation of an action potential. 1.Activation of sodium channels and rapid depolarization
2.Inactivation of sodium channels and activation of potassium channels
3.Depolarization to threshold
4.Closing of potassium channels

Accepted Answer

A) 1,3,4,2 
B) 3,1,2,4 
C) 4,3,2,1 
D) 1,3,2,4 
E) 3,1,4,2 
A) 1,3,4,2 
B) 3,1,2,4 
C) 4,3,2,1 
D) 1,3,2,4 
E) 3,1,4,2

Question 12

The part of the peripheral nervous system that brings information to the central nervous system is the

Accepted Answer

A) motor division. 
B) afferent division. 
C) efferent division. 
D) autonomic division. 
E) somatic division. 
A) motor division. 
B) afferent division. 
C) efferent division. 
D) autonomic division. 
E) somatic division.

Question 13

Monosynaptic reflexes

Accepted Answer

A) are among the most complex reflex arcs. 
B) involve two or more sequential synapses. 
C) usually control slow motor responses. 
D) do not control stereotyped responses of the nervous system. 
E) are exemplified by the stretch reflex. 
A) are among the most complex reflex arcs. 
B) involve two or more sequential synapses. 
C) usually control slow motor responses. 
D) do not control stereotyped responses of the nervous system. 
E) are exemplified by the stretch reflex.

Question 14

The ________ acts as a switching and relay center for integration of conscious and unconscious sensory information and motor commands.

Accepted Answer

A) cerebellum 
B) midbrain 
C) diencephalon 
D) pons 
E) medulla 
A) cerebellum 
B) midbrain 
C) diencephalon 
D) pons 
E) medulla

Question 15

Think about the intricacies of ballet dancing and the coordination and balance that is required.The area of the brain most required for this activity is the

Accepted Answer

A) cerebrum. 
B) thalamus. 
C) cerebellum. 
D) pons. 
E) medulla. 
A) cerebrum. 
B) thalamus. 
C) cerebellum. 
D) pons. 
E) medulla.

Question 16

Motor innervation of the muscles of facial expression is transmitted through which cranial nerve?

Accepted Answer

A) VI 
B) VII 
C) XI 
D) V 
E) X 
A) VI 
B) VII 
C) XI 
D) V 
E) X

Question 17

The thalamus is the largest portion of which major brain region?

Accepted Answer

A) mesencephalon 
B) pons 
C) midbrain 
D) diencephalon 
E) cerebellum 
A) mesencephalon 
B) pons 
C) midbrain 
D) diencephalon 
E) cerebellum

Question 18

Jenny has had a stroke,caused by a blood clot obstructing blood flow to her left parietal lobe.She seems to have a problem with understanding words and concepts now,but her speech and hearing are fine.What specific area of the brain has been damaged? What support do you have for your choice?

Accepted Answer

A clue is that the damage is in the left

Question 19

The brain and spinal cord comprise the

Accepted Answer

A) autonomic nervous system. 
B) peripheral nervous system. 
C) central nervous system. 
D) efferent nervous system. 
E) afferent nervous system. 
A) autonomic nervous system. 
B) peripheral nervous system. 
C) central nervous system. 
D) efferent nervous system. 
E) afferent nervous system.

Question 20

Damage to the ________ nerve,which is vital for the autonomic control of visceral function,could result in death.

Accepted Answer

A) abducens 
B) facial 
C) glossopharyngeal 
D) vagus 
E) hypoglossal 
A) abducens 
B) facial 
C) glossopharyngeal 
D) vagus 
E) hypoglossal

The largest and most numerous of the glial cells in the central nervous system are the

Changes in the membrane potential that cannot spread far from the site of stimulation are called

Which pathway begins at the pyramidal cells of the cerebral cortex?

Which cranial nerve is responsible for the motor innervation of pharyngeal muscles and parotid salivary glands?

The sensory region of the body monitored by each pair of spinal nerves is known as a

In adults,the spinal cord usually extends to which level?

The myelin sheaths that surround the axons of some of the neurons in the CNS are formed by

An autonomic motor neuron whose cell body lies in the CNS is called a(n)

Voluntary control of skeletal muscles is provided by the

Which structure contains cardiovascular and respiratory rhythmicity centers?

Identify the correct sequence of steps in the generation of an action potential. 1.Activation of sodium channels and rapid depolarization 2.Inactivation of sodium channels and activation of potassium channels 3.Depolarization to threshold 4.Closing of potassium channels

The part of the peripheral nervous system that brings information to the central nervous system is the

Monosynaptic reflexes

The ________ acts as a switching and relay center for integration of conscious and unconscious sensory information and motor commands.

Think about the intricacies of ballet dancing and the coordination and balance that is required.The area of the brain most required for this activity is the

Motor innervation of the muscles of facial expression is transmitted through which cranial nerve?

The thalamus is the largest portion of which major brain region?

Jenny has had a stroke,caused by a blood clot obstructing blood flow to her left parietal lobe.She seems to have a problem with understanding words and concepts now,but her speech and hearing are fine.What specific area of the brain has been damaged? What support do you have for your choice?

The brain and spinal cord comprise the

Damage to the ________ nerve,which is vital for the autonomic control of visceral function,could result in death.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

Development and Inheritance

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Exam 8: The Nervous System

The largest and most numerous of the glial cells in the central nervous system are the

Changes in the membrane potential that cannot spread far from the site of stimulation are called

Which pathway begins at the pyramidal cells of the cerebral cortex?

Which cranial nerve is responsible for the motor innervation of pharyngeal muscles and parotid salivary glands?

The sensory region of the body monitored by each pair of spinal nerves is known as a

In adults,the spinal cord usually extends to which level?

The myelin sheaths that surround the axons of some of the neurons in the CNS are formed by

An autonomic motor neuron whose cell body lies in the CNS is called a(n)

Voluntary control of skeletal muscles is provided by the

Which structure contains cardiovascular and respiratory rhythmicity centers?

Identify the correct sequence of steps in the generation of an action potential. 1.Activation of sodium channels and rapid depolarization 2.Inactivation of sodium channels and activation of potassium channels 3.Depolarization to threshold 4.Closing of potassium channels

The part of the peripheral nervous system that brings information to the central nervous system is the

Monosynaptic reflexes

The ________ acts as a switching and relay center for integration of conscious and unconscious sensory information and motor commands.

Think about the intricacies of ballet dancing and the coordination and balance that is required.The area of the brain most required for this activity is the

Motor innervation of the muscles of facial expression is transmitted through which cranial nerve?

The thalamus is the largest portion of which major brain region?

Jenny has had a stroke,caused by a blood clot obstructing blood flow to her left parietal lobe.She seems to have a problem with understanding words and concepts now,but her speech and hearing are fine.What specific area of the brain has been damaged? What support do you have for your choice?

The brain and spinal cord comprise the

Damage to the ________ nerve,which is vital for the autonomic control of visceral function,could result in death.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

Development and Inheritance

Filters